Takao before the release. Uphill knee is bent.
In the next frame he extends, no flexing in either leg. So he demonstrates exactly the opposite of what he just told the people in the clinic to do.
He continues to extend and even shows diverging tips with an inside weighted ski. Saying one thing, not explaining it corectly and then showing the opposite is just way to mixed up and confusing for anybody; especially ski instructors. They will be arguing about this for weeks or they are blind.